export function shallowEqual(obj1, obj2) {
  if (obj1 === obj2) {
    return true;
  }
  if (
    typeof obj1 != "object" ||
    obj1 === null ||
    typeof obj2 != "object" ||
    obj2 === null
  ) {
    return false;
  }
  const keys1 = Object.keys(obj1);
  const keys2 = Object.keys(obj2);
  if (keys1.length !== keys2.length) {
    return false;
  }
  for (let key of keys1) {
    if (!obj2.hasOwnProperty(key) || obj1[key] !== obj2[key]) {
      return false;
    }
  }
  return true;
}

export default shallowEqual;
